Air register



C. DAVIES Feb. 19, 1946.

AIR REGISTER Filed Nov. 5, 1942 INVENTOR CHARLES DAVIES ATTORNE PatentedFeb. 19, 1946 UNITED STATES PATENT OFFICE 3 Claims.

This invention relates to registers or grills for ventilating or similarpurposes of the type comprising an open frame with a set or sets ofpivoted blades or louvers across the opening to squeaks and rattles andyet permit of easy movement of the blades.

Another object is to provide a register which shall fulfill theforegoing stated object and yet be simple and economical to manufactureand assemble.

Other and further objects will become apparent from the descriptionhereinafter of the embodiment of my invention illustrated in the drawingin which: a

Fig. 1 is a cross-sectional view of a register constructed according tomy invention,

Fig. 2 is a face view of the register of Fig. 1 turned through an angleof 90 degrees, only part of the register being shown, and

Fig. 3 is a perspective view showing my invention applied to a registerwith a double set of blades.

Referring to Fig. 1, my register comprises an open, rectangular box-likeframe I having at one end a circumferential flange 2. A face plate 3secured to flange 2 by any convenient means may cooperate in securingthe register to a wall opening (not shown).

Within the frame a set of blades or louvers to control the flow of airis mounted in the manner now to be described. Holders 4, 4 are mountedat the inside of the frame at opposite wall and consist of a plate ofmetal or other rigid material which is apposed to the inside of theframe wall and secured thereto in any convenient fashion as by spotwelding. The inner edge of the holder 4 is bent or shaped out and aroundas at 5 to provide a linear pocket 6. A flat blade or leaf 1 of springymaterial is inserted at one edge in pocket 6 and is provided near theother edge with a spaced series of openings 8 corresponding with similaropenings on the other spring member I. Mounted between the springmembers 1 is a set of blades or louvers 9 which as shown in Fig. 1 maybeprovided with pivots in the form of ears [0 at opposite ends, adapted toenter and engage in the holes 8. In Fig. 3, I have shown an alternativeshape in one set consisting of a sheet of material 9' folded about apivot pin Ill, but it is clear that the blade may be made in any desiredmanner or shape. For convenience, the blade 9 may be provided withanother ear I l which may be engaged with an operating link I2 so thatthe blades may be turned as a unit.

In Fig. 3 for a second set of crossing louvers each holder of one sethas been reduced to a channel 6' having one edge turned up as at 13 toform a bearing or friction edge. A similar function is obtained in theholder of Fig. 1 by folding back the pocket 6 along the line l3. Beforeassembly the spring members I are plane. One edge is inserted in pocket6, the leaves I pressed back and the blade 9 slid in until the ears I!)enter the holes 8. The elasticity of the leaves I holds the'blade 9firmly in position. At the same time the spring is held firmly in pocket6 by the fiexure acting against the bearing edges l3, 13'. To supportand stiffen the holder the frame I may be turned inwardly as at l4 toprovide a backing for the pocket 6; and the face plate may be extendedas at iii to provide a stop for the front edge of the leaf 1 as in Fig.1 and the pocket ii as in Fig. 3. The edge of the blade 9 may be cutaway as at IE to reduce friction and permit easier manipulation.

It is to be seen that the assembly of the blades is reduced to justslipping the parts in place; while nevertheless the blades are firmlyheld in position both initially and over the period of use despitecorrosion, dust and other similar factors. It is clear that manyvariations in detail may be made without departing from my invention,

What I claim is:

1. A register comprising an open frame, pockets secured to oppositeinner sides of the frame, leaf springs inserted at one edge in thepockets and provided near the other and free edge with a series ofcorresponding openings, each pocket being provided with means bearingagainst the leaf spring intermediate its edges to provide a line overwhich the spring may be folded, a set of blades across the openings,each blade being provided with means at each end engaged in the openingswhereby the blade is pivotally mounted between and held in position bythe fiexure of the springs.

2. A register comprising an open frame, a holder secured to the frameand provided with a channel shaped to receive snugly one edge of a flatspring plate, a flat spring plate engaged at one edge in the channel,said channel having means,

against and over which the spring plate may be bent to provide flexure,a blade pivotally engaged with and pressing against the said springplate whereby both blade and spring are securely held in position. I

3. A register comprising an open frame, pockets secured to oppositeinner side of the frame and adapted to receive each the edge of a fiatplate, flat leaf springs having one edge inserted in the pockets and therespective opposite edges free,

said pockets having means to provide a bearing edge over which the leafspring may be bent, a set of blades across the frame, each blade beingmounted in and bearing against the springs near the free edges thereof,whereby the springs are flexed to secure them and the blades inposition.

CHARLES DAVIES,

